ISO 17190-7:2020 PDF

Name: ISO 17190-7:2020 — Urine-absorbing aids for incontinence — Polyacrylate superabsorbent powders — Part 7: Test method for gravimetric determination of absorption against pressure
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Urine-absorbing aids for incontinence — Polyacrylate superabsorbent powders — Part 7: Test method for gravimetric determination of absorption against pressure

Название (английский):

ISO 17190-7:2020

Urine-absorbing aids for incontinence — Polyacrylate superabsorbent powders — Part 7: Test method for gravimetric determination of absorption against pressure

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 10
Дата публикации:: 27 октября 2020 г.
Издание:: ISO IS 17190 edition 2 version 1
ICS:: 11.180.20

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Описание (английский):

This document provides a test method that determines the capacity of polyacrylate superabsorbent powders to absorb saline solution under a specified enclosing pressure.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 17190-7:2020 specifies a gravimetric test method to determine the capacity of polyacrylate superabsorbent powders (SAPs) used in urine‑absorbing aids for incontinence to absorb a 0.9 % saline solution under a specified enclosing pressure. The method quantifies absorption against pressure (AAP) by weighing a defined powder specimen before and after immersion under controlled pressure and time (60 minutes). This standard is part of the ISO 17190 series on urine‑absorbing aids and provides repeatable lab procedures for material characterization and quality control.

Key Topics

Test principle: Evenly distribute a measured specimen of SAP on a bottom screen inside a PMMA cylinder, apply a PTFE piston and calibrated weight, place the cylinder on a ceramic filter plate saturated with 0.9 % sodium chloride solution, and after 1 hour reweigh to determine absorbed mass.

Reagents and conditions: Uses grade‑1 laboratory water (ISO 3696) and a 0.9 % NaCl saline. Recommended laboratory climate is (23 ± 2) °C and (45 ± 15) % RH (per ISO 187). Conductivity checks and solution temperature guidance are included.

Apparatus: PMMA cylinder (nominal internal diameter 60.0 ± 0.2 mm), PTFE piston, piston weight calibrated to deliver ~49 g/cm (≈4 805 Pa) pressure, ceramic filter plate (porosity per ISO 4793), balances with specified precisions, filter paper and timing devices.

Sampling and handling: Procedures to homogenize samples (container rotation), avoid lumps >1 mm, and limit operator exposure to respirable dust (guideline 0.05 mg·m‑3).

Calculation and reporting: AAP is reported as mass fraction (g absorbed per g SAP). Duplicate measurements and cleaning/conditioning steps are defined to ensure reproducibility.

Applications

Quality control in the manufacture of incontinence products (adult diapers, pads, medical absorbents).

Material specification and batch release testing for superabsorbent polymer (SAP) suppliers.

R&D and performance benchmarking when developing new SAP formulations or evaluating absorbency under load.

Regulatory or procurement evaluation where standardized, comparable absorbency data are required.

Related Standards

ISO 17190 series (other parts covering characterisation of absorbent materials)

ISO 187 - conditioning and testing atmosphere

ISO 3696 - water for analytical laboratory use

ISO 4793 - filter plate porosity specification

ISO 17190-7:2020 delivers a practical, reproducible gravimetric method for quantifying absorbency under pressure, enabling consistent performance evaluation of SAPs used in urine‑absorbing aids.

ISO 17190-7:2020 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Who uses this standard

Related Standards

Технические детали

BS ISO 17190-4:2020

Urine-absorbing aids for incontinence. Polyacrylate superabsorbent powders. Test method for estimation of the…

SIST EN ISO 3696:1998

Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)

BS EN ISO 18771:2020

Anodizing of aluminium and its alloys. Method to test the surface abrasion resistance using glass-coated abra…

SIST ISO 4793:1995

Laboratory sintered (fritted) filters -- Porosity grading, classification and designation